SDRL - Seadrill reach 66.18% ownership in Asia Offshore Drilling Limited

Hamilton, Bermuda, 25 March 2013 - Seadrill Limited ("Seadrill") has today acquired additional 2,488 shares of Asia Offshore Drilling Limited (the "Company", OSE: AOD). The shares were acquired at price NOK 28.70 per share. Following this acquisition, Seadrill will be the owner of 39,709,313 shares in the Company, corresponding to 66.18% of the total number of outstanding shares in the Company.

This information is subject of the disclosure requirements pursuant to section 5-12 of the Norwegian Securities Trading Act.